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Finding the Fourth Proportional to 28,333.52, 39,097.48 and 15,757.52

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Solution

The fourth proportional to 28,333.52, 39,097.48 and 15,757.52 is: 21,743.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,333.52 : 39,097.48 = 15,757.52 : x
  2. Step 2: Convert to fraction form
    28,333.52/39,097.48 = 15,757.52/x
  3. Step 3: Cross multiply
    28,333.52x = 39,097.48 × 15,757.52
  4. Step 4: Simplify right side
    28,333.52x = 616,079,323.05
  5. Step 5: Solve for x
    x = 616,079,323.05/28,333.52
  6. Step 6: Final answer
    x = 21,743.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.